So I have been paying against the medium AI over and over again doing the same thing, over and over again. 4 Gate build with a proxy pylon, and a backup in case he finds the first. It took me 8 games to get it down pretty well but I am still not comfortable with it. I think I'm going to avoid playing some match ups for a few days and work on getting my play up to par where it needs to be. Also, since I am a Achievement Whore(2000+ and growing) I found that playing against the AI will get you some points, may as well do it right? Im plugging my leaks and getting some achievements to boot!
I encourage you, if your at this point where you notice small things you can do better, or lose to things you know you wouldn't lose too, take a break, do what I am doing and see if it helps. Doing your build order over and over agian can help you realize when you should be doing something. And its important to note, if you start having more trouble with your build order in matchups, than you are reaching a point where that one strategy you always used isnt going to cut it. It is now time to expand your horizons, think of ways to improve against that type of matchup, knowing what to look for in your scouting to expect it, and keeping an eye on him in general to know when hes making that push. At this point, the small things do matter.